ANTI RETURN VALVE
Printed From: rsvr.net Forums
Category: General Chat
Forum Name: Technical info
Forum Description: Part numbers and sources for all Aprilia models.
URL: http://www.rsvr.net/forum_posts.asp?TID=21007
Printed Date: 27 Mar 2026 at 02:26
Software Version: Web Wiz Forums 12.07 - https://www.webwizforums.com
Topic: ANTI RETURN VALVE
Posted By: Kamm Matt
Subject: ANTI RETURN VALVE
Date Posted: 19 Feb 2016 at 03:58
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On behalf of my friend.. his 04 rsvr has two same anti return valve on the flapper + throttle body aswell.. (805804 or B05804 deltac - 810 4594) from factory manufacturing but in the diagram the part code is different (it shud be 810 4996) part 13 does it normal ? or the diagram is wrong? or factory is wrong? haha..  ------------- http://mibc.proboards.com/ |
Replies:
Posted By: Spoonz
Date Posted: 19 Feb 2016 at 09:16
| Alternative supplier to Aprilia, both versions do the same thing but are slightly different designs. |
Posted By: albrown001
Date Posted: 20 Feb 2016 at 21:04
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I think they are still colour coded though. Black one side and white the other side. Black side faces wherever the vacuum is coming from. i.e. the intake throttle bodies. Basically the way I see it is the throttle bodies can create a vacuum to the pipes that are connected to it by sucking air in, but cannot put pressure back down the pipes because of the valve. The flapper valve works on vacuum and so does the clutch, so as long as the valve allows air to go to the throttle bodies only, then all is good. There are lots of different types and you can also upgrade them to better ones instead of using the OEM ones that can fail and cause running problems. I'm not a mechanic just something I picked up from working recently on my bike so don't quote me on any of that, but I believe I am right.
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